I feel this way all the time, and thought it was well expressed in Before Sunrise (a movie I had never actually seen until very recently).
From Ethan Hawke's character in Before Sunrise:
"It's usually myself that i wish i could get away fromFunny to cross-reference this blog with my band, but I wrote a song about this sentiment called "Not My Own," which you can hear on my band, Monuments' Myspace page. Both express a yearning to be dissociated from one's self.
I have never been anywhere that I haven't been
I've never had a kiss that i wasn't one of the kissers
I've never gone to the movies when I wasn't there in the audience
I've never been bowling when I wasn't there making some stupid joke
I think that's why so many people hate themselves, seriously
They're sick to death of being around themselves."